Decrypt config value from stage/prod server

decrypt_m2_config_value.sh

# get crypt key from remote server
ssh <user>@<server> -C 'grep "'\''key'\''" ~/app/etc/env.php' | awk '{ print $3 }'

# substitute local env.php crypt key with remote crypt key

# on vagrant
mr dev:console

$encryptor = $di->get(\Magento\Framework\Encryption\EncryptorInterface::class);
$encryptor->decrypt('value from remote database core_config_data table goes here');